The word screeched has one syllable.
Whisper
I am not entirely sure as to whether you mean a positive synonym for "screeched", or whether the word itself has any positive connotations. A positive connotation for the word "screeched" could be the fact that although it is a harsh and displeasing noise, it is often used in conjunction with excitement. For example: "Wow!" she screeched, suggests that she is pleased, or incredibly surprised, and therefor is shrieking to express the above emotions. A synonym for "screeched" I rather like is "caterwauled".
The longest word in the English language with one syllable.
Shout, Yell, Shriek, Cry out, High-pitched shout, Holler, Howl, Screech, Wail, Yelp
I jumped when the owl screeched. The car screeched to a halt.
Yes, it is the joint longest with scratched and scrunched.
Yes, because the longest 1 syllable word is screeched and squirreled is longer.
it is still screeched because it only has a negative connotation.
I am not entirely sure as to whether you mean a positive synonym for "screeched", or whether the word itself has any positive connotations. A positive connotation for the word "screeched" could be the fact that although it is a harsh and displeasing noise, it is often used in conjunction with excitement. For example: "Wow!" she screeched, suggests that she is pleased, or incredibly surprised, and therefor is shrieking to express the above emotions. A synonym for "screeched" I rather like is "caterwauled".
From the verb to screech, the word is screeched(made a high-pitched sound or wail).
A high-pitched scream or sound is a "screech."